Pipe Towers Zone(Underground) - Sonic Robo Blast 2 MIDIs

Probably one of the biggest glowups of 2.2 right here, with the track extended and made more into an actual song rather than a few second tune. Heck, it's probably one of the best renditions of the underground theme ever made. Credits to the composer of this version, CobaltBW/clairebun, and by extension, all of Sonic Team Jr.